org.coos.messaging.Op Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of messaging-lib
There is a newer version: 1.3.1
/**
 * COOS - Connected Objects Operating System (www.connectedobjects.org).
 *
 * Copyright (C) 2009 Telenor ASA and Tellu AS. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 *
 * You may also contact one of the following for additional information:
 * Telenor ASA, Snaroyveien 30, N-1331 Fornebu, Norway (www.telenor.no)
 * Tellu AS, Hagalokkveien 13, N-1383 Asker, Norway (www.tellu.no)
 */
package org.coos.messaging;

/**
 *
 * @author Knut Eilif Husa, Tellu AS Operator class
 */
public class Op {

    /** equality operator */
    public static final short EQ = 1;

    /** less than operator */
    public static final short LT = 2;

    /** greater than operator */
    public static final short GT = 3;

    /** greater o equal operator */
    public static final short GE = 4;

    /** less or equal operator */
    public static final short LE = 5;

    public static final short PF = 6;

    public static final short SF = 7;

    /** any operator */
    public static final short ANY = 8;

    /** not equal operator */
    public static final short NE = 9;

    public static final short SS = 10;

    /** string representation of operators */
    public static final String[] operators = { null, "=", "<", ">", ">=", "<=", ">*", "*<", "any", "!=", "*" };

    /**
     * returns the operator corresponding to the given string representation.
     *
     * @param strop
     *            string representation of the operator (e.g. "=" returns
     *            Operator.EQ)
     * @return operator code or 0 if the string is not a valid representation
     **/
    public static short op(String strop) {

        for (short i = 1; i < operators.length; ++i)
            if (operators[i].equals(strop))
                return i;

        return 0;
    }

}